Package Contents: You will receive 6 reversible airless spray tips and 2 airless spray guards. Each nozzle is equipped with an airless nozzle and a nozzle seal. The 7 models are 211, 315, 417, 515, 517, and 523, enough for daily use and replacement. Wide Compatibility: There are 6 models in total, namely 211, 315, 417, 515, 517, and 523. The corresponding nozzle diameters are 0.0 cm, 0.0 cm, 0.0 cm, and 0.1 cm, and the spray range is 10-30 cm. The airless nozzles are compatible with most airless sprayers. The spray range varies depending on the opening size. Airless Spray Guard: The guard serves as a safety device to prevent people from coming into contact with the nozzle while spraying and keeps the spray nozzle in place. Fits 2WCW8, 2WCX9, 2WCX1, 2WCX2, 2WCX3, 2WCX4, 2WCX5, 2WCX6, 2WCX7, 2WCX8. Easy installation: Insert the included nozzle into the guard base, insert the nozzle into the guard base, and twist to secure. Easy to clean: Simply twist the nozzle. Wide application: